PDFluent vs pdf-lib

use pdfluent::PdfDocument;

fn main() -> pdfluent::Result<()> {
    let doc = PdfDocument::open("form.pdf")?;

    // Read all form fields
    let form = doc.acroform()?;
    for field in doc.form_fields() {
        println!("{}: {:?}", field.name(), field.value());
    }

    // Extract text
    for i in 0..doc.page_count() {
        let text = doc.page(i)?.text()?;
        println!("{}", text);
    }

    // Validate PDF/A-1b
    let report = doc.validate_pdfa(pdfluent::PdfaLevel::A1b)?;
    println!("Valid: {}", report.is_valid());

    Ok(())
}

import { PDFDocument, rgb, StandardFonts } from 'pdf-lib';
import { readFileSync, writeFileSync } from 'fs';

async function main() {
    const existingPdfBytes = readFileSync('form.pdf');
    const pdfDoc = await PDFDocument.load(existingPdfBytes);

    // pdf-lib can fill simple text fields
    const form = pdfDoc.getForm();
    const field = form.getTextField('name');
    field.setText('John Doe');

    // pdf-lib CANNOT extract text from existing content
    // pdf-lib CANNOT read annotation values
    // pdf-lib CANNOT validate PDF/A
    // pdf-lib CANNOT handle XFA forms

    const pdfBytes = await pdfDoc.save();
    writeFileSync('output.pdf', pdfBytes);
}

main();